Pump



y Sept. 27, 1932,. Q SMH-H 1,879,567

PUMP

Filed March 25, 1930 5 Sheets-Sheet l O. O. SMITH Sept. 27, 1932;

PUMP

Filed March 25, 1930 5 Sheets-Sheet 2 @M WM,

27, 1932. Q o, SMH-H v1,879,567

yPUMP Filed March 25, 1930 5 Sheets-Sheet I5 nulmmnmul E vxI lllllml 6//E gwvmtov g @da U.

sept. 27, 1932. O. Q. Mum l 1,879,567

PUMP

Filed March 25, 1930 5 Sheets-Sheet 4 O. O. SMITH Sept; 27, 1932.

PUMP

Filed March 25, 1930 5 Sheets-Sheet 5 gmmm @ma )5M Patented Sept. 27,1932 UNITED STATES PATENT orifice ORVILLE 0. SMITH, OF PRESCOTT,ARTZONA, ASSIGNOR OF ONE-HALF T LOUIS E. HESLA AND WALTER H. DUNCAN,BOTH VOIE PRESCOTT, ARIZONA v PUMP Application led March 25, 1930.Serial No. 438,805.

My invention relates to an improvement in horizontally disposed rotarypumps of the eccentric type. This application is substituted for myformer application Serial No.

7 48,354, filed November 7, 1924.

This present pump is of the rotary eccentric type, having pump vaneswhich are reciprocated and rotated by the eccentric mechanism, and theobject of the invention is to i0 improve the construction and operationof pumps of this character.

In the accompanying drawings:

Fig. 1 is a side elevation of the complete pump; Y

Fig. 2 is a transverse sectional view through the housing;

Fig. 3 is a top view of the housing;

Fig. 4 is an outside view of the eccentric housing cover removed;

Fig. 5 is a top plan view of the same;

Fig. 6 is an inside elevation thereof;

Fig. 7 is a face View of the pump vane guide-ring; y

Fig. 8 is a plan view of the same; Y Y

Fig. 9 is a plan view of one of the vanes;

Fig. 10 is an end view thereof; and

Fig. 11 is an edge view of the same.

A, represents the base of the eccentric pump; and 1 is a housing securedthereto by screws or bolts 2; and 3 is a line of shafting extendingthrough the housing and through a bearing 4 supported by the base A andon which shaft 3 are mounted pulleys 6.

An eccentric housing cover 7 is adapted i to be bolted onto the open (orleft-hand end as shown in the drawings) of the housing 1,

and this cover 7 carries a stub-shaft 8 which extends into the housingand has a bore 9 eccentrically disposed therein, as shown in 0 Figs. 2,5 and 6. The shaft 3 extends through and is journaled in the bore 9.

Keyed on the shaft 3 at a point between the end of the stub-shaft andthe inner ver-V tical wall of the housing is a pump vane guide-ring 10shown in Figs. 2, 7 and 8. This ring is fittedto turn in the recess 14formed in the housing 1, which recess is concentric of the shaft 3 andeccentric of the inner cylindrical wall of the housing. The cylindricalportion ofthe guide-ring 10 fits and turns in the recess 14 of thehousing, and is provided with four equidistant transverse slots 11 asshown in Figs. 7 and 8; and the two pump vane cores 12a shown in Figs.9, 10 and 11 are assembled with their slots 13 at right-angles to eachother and receiving and in contact with the stationary stub-shaft 8, asshown in Fig., 2. Vanes 12 extend transversely from opposite sides ofthe vane cores 12a, as shown in Fig. 2.

The Water enters the pump through the pprt 16 and is discharged throughthe port 1 Thus it will be seen that the pump vane guide-ring 10V turnswith the shaft 3 in the circular recess 14 in the inner wall of thehousing, which it fits, while the pump vanes having sliding connectiontherewith are turned around the stationary stubshaft 8 as a center withtheir outer edges following the Wall`15 of the housing, the centers ofthe rotary and stationary shafts being eccentric to each other. In thisway the water is drawn or sucked in through the inlet port 16 `anddischarged through port 17 with each cycle of the pump vane ring-guide.

Thus in a very simple manner, a strong, durable and effective type ofeccentric pump is provided which carries on with precision,

and ,pumps the water in a continuous stream under pressure While inoperation.

I claim:

AV pump of the character described comprising a housing having a chambertherein, a stationary shaft disposed in said chamber, a rotary shaftjournaled eccentrically of the stationary shaft, a cylindrical guidemember having a flange at an endvthereof fixed to the rotary shaft atone side of the chamber, said guide member having radially extendingslots in the outer wall thereof, a single pair 0fvane cores dis osed inthe chamber and having openings t erein receiving the stationary shaft,the cores being arranged side by side within the cylindrical guidemember, venes extending radially in different directions from each ofthe vane cores and movable through the slots in the guide member, thevanes carried by each core being extended laterally on one side onlythereof and overlapping the other core of the pair.

In testimony whereof I aiix my signature.

ORVILLE O. SMITH.

